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Published on Apr 10, 2018
So what exactly is ZRT? Zone Rate Tuning (ZRT) manipulates the factory linear-rate spring tuning to produce three distinct performance zones with a more exaggerated spring curve to tackle various driving conditions.
An internal negative-rate spring offsets the factory spring’s preload while in the Extension Zone. This eliminates top out cluck and shock stress at full extension, while softening tire landing and reducing body roll on impact during aggressive driving.
The factory spring rate is unaffected in the Drive Zone for a comfortable and controlled ride. A provided progressive microcellular bump stop effectively retunes the spring rate while in the Compression Zone to reduce bottoming and body roll during aggressive driving.